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From: Noah Misch <[email protected]>
To: [email protected]
Subject: pgsql: Check CREATE privilege on multirange type schema in CREATE TYPE.
Date: Mon, 11 May 2026 12:19:40 +0000
Message-ID: <[email protected]> (raw)

Check CREATE privilege on multirange type schema in CREATE TYPE.

This omission allowed roles to create multirange types in any
schema, potentially leading to privilege escalations.  Note that
when a multirange type name is not specified in CREATE TYPE, it is
automatically placed in the range type's schema, which is checked
at the beginning of DefineRange().

Reported-by: Jelte Fennema-Nio <[email protected]>
Author: Jelte Fennema-Nio <[email protected]>
Reviewed-by: Nathan Bossart <[email protected]>
Reviewed-by: Tomas Vondra <[email protected]>
Security: CVE-2026-6472
Backpatch-through: 14

Branch
------
REL_15_STABLE

Details
-------
https://git.postgresql.org/pg/commitdiff/08c397b0234b09084195930dc41d125eca5d334d
Author: Nathan Bossart <[email protected]>

Modified Files
--------------
src/backend/commands/typecmds.c               |  7 +++++++
src/test/regress/expected/multirangetypes.out | 16 ++++++++++++++++
src/test/regress/sql/multirangetypes.sql      | 16 ++++++++++++++++
3 files changed, 39 insertions(+)

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